diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index 8c43cfc..5223896 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -45,6 +45,7 @@ enum snd_soc_dobj_type {
 	SND_SOC_DOBJ_DAI_LINK,
 	SND_SOC_DOBJ_PCM,
 	SND_SOC_DOBJ_CODEC_LINK,
+	SND_SOC_DOBJ_BACKEND_LINK,
 };
 
 /* dynamic control object */